15051.git, branch main Scientific American Supplement, No. 829, November 21, 1891 initial commit of ebook 15051 2025-10-15T11:45:55+00:00 Roger Frank rfrank@pglaf.org 2025-10-15T11:45:55+00:00 069158a7e45d1c152841c27612131f9a7adf1c23